干旱区生态环境知识资源中心(Arid): 中扬子区寒武纪层序地层研究

Arid

	中扬子区寒武纪层序地层研究
其他题名	Cambrian sequence stratigraphy of the middle Yangtze area
	周雁 1; 陈洪德 2; 王成善 2; 金之钧 1; 汤良杰 1; 王正元 3; 梁西文 3
来源期刊	沉积与特提斯地质
ISSN	1009-3850
出版年	2003
卷号	23 期号:3 页码:65-72
中文摘要	笔者建立了中扬子区寒武系层序地层格架，研究了中扬子区层序界面和体系域特点，分析了中扬子区层序样式的基本类型及其特征。共划分出2个二级层序、14个三级层序。寒武系下统划分出了1个二级层序（SS3）、6个三级层序（SQ1-SQ6），平均延时约5.0Ma;体系域颜色普遍较深，泥质含量较高，是一套良好的烃源盐。寒武系中上统划分出1个二级层序（SS4）、8个三级层序（SQ7-SQ14），平均延时约2.9Ma；体系域颜色普遍较浅，云质含量较高，是一套良好的储集层，总体上H型样式为主，T型样式和TH型样式数量相当，反映寒武纪水体中等。二级层序体系域和三级层序体系域都表现出明显的南北向差异性。
英文摘要	The present paper deals with the Cambrian sequence stratigraphic framework, sequence boundaries, sequence patterns and systems tracts in the middle Yangtze area. Two second-order sequences arid fourteen third-order sequences have been distinguished, including: (1) one second-order sequence (SS3) and six third-order sequences (SQ1 - SQ6) for the Lower Cambrian strata, with an average time duration of about 5.0 Ma. The systems tracts are generally dark-coloured, with higher mud contents, and thus may serve as excellent source rocks, and (2) one second-order sequence (SS4) and eight third-order sequences (SQ7 - SQ14) for the Middle and Upper Cambrian strata, with an average time duration of about 2.9 Ma. The systems tracts are generally light-coloured, with higher dolomite contents, and thus may serve as excellent reservoir rocks. Collectively, the H-type patterns are dominated; the T-type and TH-type are almost identical, indicating a moderate water depth during the Cambrian. The NS-directed differences are manifested in both second- and third-order systems tracts.
中文关键词	层序地层 ; 层序样式 ; 寒武纪 ; 海相沉积 ; 中扬子区
英文关键词	sequence stratigraphy sequence pattern Cambrian marine sediments middle Yangtze area
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOLOGY
WOS研究方向	Geology
CSCD记录号	CSCD:1304822
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203872
作者单位	1.石油大学(北京)资源与环境学院, 北京 102200, 中国; 2.成都理工大学, 油气藏地质与开发国家重点实验室, 成都, 四川 610059, 中国; 3.中国石化江汉油田分公司研究院, 潜江, 湖北 433124, 中国
推荐引用方式 GB/T 7714	周雁,陈洪德,王成善,等. 中扬子区寒武纪层序地层研究[J],2003,23(3):65-72.
APA	周雁.,陈洪德.,王成善.,金之钧.,汤良杰.,...&梁西文.(2003).中扬子区寒武纪层序地层研究.沉积与特提斯地质,23(3),65-72.
MLA	周雁,et al."中扬子区寒武纪层序地层研究".沉积与特提斯地质 23.3(2003):65-72.